The invention
a) method of filling an ether having the initial 3 to 30 carbon atoms step;
b) adding a compound comprising a phosphine ligand and Pd, or
Pd and force a method of adding a complex comprising a ligand step;
c) steps for the method of supplying the CO;
Heating the d) the reaction mixture, wherein the method steps are ether is converted
Comprising, wherein the alcohol is not added to the reaction mixture, the phosphine ligand is directed to a method, a compound of formula I.
<Formula I>

Wherein
m and n are each independently 0 or 1;
^{R 1, R 2, R 3} , R 4 are each independently - (C ₁ -C ₁₂₎ - _{alkyl, - (C 3 -C 12)} - _{cycloalkyl, - (C 3 -C 12)} - heterocycloalkyl _{, - (C 6 -C 20)} - _{aryl, - (C 3 -C 20)} - , and heteroaryl;
^{R 1, R 2, R 3} , R 4 at least one of the radicals - (C ₃ -C ₂₀₎ - heteroaryl radical;
The ^{R 1, R 2, R 3} , R 4 - (C 1 -C 12) - _{alkyl, - (C 3 -C 12)} - _{cycloalkyl, - (C 3 -C 12)} - heterocycloalkyl, - ( C ₆ -C ₂₀₎ - aryl or - (C ₃ -C ₂₀₎ - If the heteroaryl group, all of which are each independently - (C ₁ -C ₁₂₎ - _{alkyl, - (C 3 -C 12)} - cycloalkyl, - (C ₃ -C ₁₂₎ - _{heterocycloalkyl, -O- (C 1 -C 12)} - _{alkyl, -O- (C 1 -C 12)} - alkyl, - (C ₆ -C ₂₀₎ - aryl, -O - (C ₃ -C ₁₂₎ - _{cycloalkyl, -S- (C 1 -C 12)} - _{alkyl, -S- (C 3 -C 12)} - _{cycloalkyl, -COO- (C 1 -C 12)} - _{alkyl, -COO- (C 3 -C 12)} - _{cycloalkyl, -CONH- (C 1 -C 12)} - _{alkyl, -CONH- (C 3 -C 12)} - cycloalkyl, -CO- (C ₁ - C ₁₂₎ - _{alkyl, -CO- (C 3 -C 12)} - _{cycloalkyl, -N - [(C 1 -C} 12) - _{alkyl] 2, - (C 6 -C} 20) - aryl, - (C ₆ -C ₂₀₎ - aryl - (C ₁ -C ₁₂₎ - _{alkyl, - (C 6 -C 20)} - aryl -O- (C ₁ -C ₁₂₎ - _{alkyl, - (C 3 -C 20)} - _{heteroaryl, - (C 3 -C 20)} - heteroaryl, - (C ₁ -C ₁₂₎ - _{alkyl, - (C 3 -C 20)} - heteroaryl, -O- (C ₁ -C ₁₂₎ - alkyl, - one or more selected from _{COOH, -SO 3 H, -NH 2} , halogen value It can be substituted by ventilation.